animated texture doesnt play.

[saos]

im trying to make an animated texture that shows an arrow sign , the first frame starts with a transparent texture. the texture does play in vtfedit , and i think i followed everything that should be put in the vmt file, in game the texture doesnt play. this is what is inside of my vmt file
[IMG]http://i.imgur.com/wtA4GZ3.png[/IMG]